NOI.AC
| ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
|---|---|---|---|---|---|---|---|---|---|
| #200557 | #2848. 小明的多米诺 | GS128 | 100 | 0ms | 1128kb | C++11 | 841b | 2024-01-06 07:52:54 | 2024-01-06 12:00:55 |
answer
#include<bits/stdc++.h>
#define lowbit(x) x&(-x)
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double LD;
typedef pair<ll,ll> pll;
typedef pair<int,int> pii;
const ll MOD=1e9+7;
const ll INF=0x3f3f3f3f3f3f3f3f;
const LD eps=1e-9;
inline ll read()
{
ll ans=0, f=1;
char c=getchar();
while(c<'0'||c>'9')
{
if(c=='-') f=-1;
c=getchar();
}
while(c>='0'&&c<='9') ans=ans*10+c-'0', c=getchar();
return ans*f;
}
ll n;
void solve()
{
n=read();
ll a,b;
ll sum1=0, sum2=0, tot=0;
for(int i=1;i<=n;i++)
{
a=read(), b=read();
sum1+=a, sum2+=b;
tot+=(sum1+sum2)%2;
}
sum1%=2, sum2%=2;
if(sum1==0&&sum2==0) puts("0");
else if(sum1==1&&sum2==1&&tot) puts("1");
else puts("-1");
return ;
}
int main()
{
solve();
return 0;
}
详细
小提示：点击横条可展开更详细的信息
Test #1:
score: 10
Accepted
time: 0ms
memory: 1124kb
input:
5 5 4 5 4 1 5 5 5 3 3
output:
1
result:
ok single line: '1'
Test #2:
score: 10
Accepted
time: 0ms
memory: 1124kb
input:
20 1 3 5 2 5 2 2 6 2 4 1 1 1 3 1 4 2 6 4 2 5 6 2 2 6 2 4 3 2 1 6 2 6 5 4 5 2 4 1 4
output:
-1
result:
ok single line: '-1'
Test #3:
score: 10
Accepted
time: 0ms
memory: 1124kb
input:
100 2 3 2 4 3 3 1 4 5 2 5 4 6 6 3 4 1 1 4 2 5 1 5 5 5 3 3 6 4 1 1 6 1 1 3 2 4 5 6 1 6 4 1 1 3 4 3 3 ...
output:
-1
result:
ok single line: '-1'
Test #4:
score: 10
Accepted
time: 0ms
memory: 1128kb
input:
1 2 4
output:
0
result:
ok single line: '0'
Test #5:
score: 10
Accepted
time: 0ms
memory: 1128kb
input:
5 1 2 6 6 1 1 3 3 6 1
output:
1
result:
ok single line: '1'
Test #6:
score: 10
Accepted
time: 0ms
memory: 1128kb
input:
2041 189527 341486 989388 490740 305174 711489 998492 971844 424442 832954 293154 906619 738735 4393...
output:
-1
result:
ok single line: '-1'
Test #7:
score: 10
Accepted
time: 0ms
memory: 1128kb
input:
3979 570645 799923 575548 225560 50785 677255 477674 515334 686797 369269 485765 185627 848520 36065...
output:
1
result:
ok single line: '1'
Test #8:
score: 10
Accepted
time: 0ms
memory: 1124kb
input:
4031 765434 704266 619465 472848 817491 309190 584154 137933 712959 888161 761709 256164 891988 6307...
output:
-1
result:
ok single line: '-1'
Test #9:
score: 10
Accepted
time: 0ms
memory: 1128kb
input:
4083 95924 610408 662383 520138 585197 939125 691434 558533 539922 40952 37652 128501 735457 100886 ...
output:
-1
result:
ok single line: '-1'
Test #10:
score: 10
Accepted
time: 0ms
memory: 1124kb
input:
4139 67899 398310 433171 883357 514946 423905 842270 593696 992632 761387 130816 229534 981617 89827...
output:
-1
result:
ok single line: '-1'
